If you started your Pro subscription on iPad/iPhone, you can cancel it by taking the following steps:

Open your device Settings and tap "iTunes & App Store".

Tap your Apple ID > "View Apple ID".

In "Subscriptions" tap "Manage".

Choose the subscription you want to cancel.

Tap the toggle to switch it off.

-------------------------------------------------------------------------------------------------------------------------If you started your Pro subscription on Android device, you can cancel it by taking the following steps: